Mark W. Hahn

INDEPENDENT DIRECTOR AND CHAIR OF AUDIT COMMITTEE

Mr. Hahn has agreed to serve on our board of directors as an independent director upon the closing of this offering and as Chairman of our Audit Committee. Mr. Hahn is a seasoned pharmaceutical executive who currently serves as Chief Financial Officer of Verona Pharma plc since March 1, 2020. Prior to Verona Pharma, Mr. Hahn served as CFO of Dova Pharmaceuticals from January 2018 until the acquisition by Sobi in November 2019 where he led over $100 million in equity and debt financings and was instrumental in the launch of Dova’s first commercial product. Mr. Hahn previously served as the CFO of Cempra from 2010 until it was acquired by Melinta Therapeutics in November 2017. While at Cempra, Mr. Hahn spearheaded all financing activities including the company’s IPO and follow-on offerings raising over $500 million. Prior to joining Cempra, from 2008 to 2009, Mr. Hahn was the CFO for Athenix, a rapidly growing agricultural biotech company prior to its merger with Bayer CropScience. Before taking on operating roles, Mr. Hahn spent twelve years at Ernst & Young where he assisted many software, manufacturing, and consumer product companies. Mr. Hahn received his B.B.A. degree in Accounting and Finance from the University of Wisconsin-Milwaukee and is a Certified Public Accountant in Maryland and North Carolina.